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Re: Kr-81m

Since Kr-81m has a half life of 13 seconds, and its parent, Rb81, has a half

life of 4.7 hours, you will need an on site or nearby accelerator to produce

this.  When I was at Argonne National Lab, the cyclotron facility was

producing Rb-81 to generate Kr-81m  for experimental use at a nearby hospital.



I hope that you are successful.   This produces high quality lung scans (It

was being used to diagnose black lung disease cases which could not be

detected with a normal chest x-ray)  with less dose than a conventional chest

x-ray.



The opinions expressed are strictly mine.

It's not about dose, it's about trust.



Bill Lipton

liptonw@dteenergy.com



"Jonkers, Gert G SIC-ASA/4" wrote:



> Dear RADsafers,

>

> It is hard to go back to 'normal' daily work, after yesterday's terrorist

> attack on the US. I hardly do dare to ask, but can anyone point me to

> suppliers of Kr-81m in the South-East Asia region. Many thanks in advance

> for your reaction.

>

> With sympathy,

> Gert Jonkers

> Nuclear Measurement Techniques / Ionising Radiation Safety Expert (CHP) /

> NORM HSE Expert

> Shell International Chemicals B.V.

> P.O. Box 38000, 1030 BN  AMSTERDAM, The Netherlands

>

> Tel: +31 (0)20 630 34 24 Fax: 29 11

> Email: Gert.G.Jonkers@opc.shell.com

> Internet: Http://www.shell.com/tis-en/

>

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